Firefox52 broken on NetBSD9.3 / pkgsrc-2022Q4

[Connor McLaughlan <cont6pro3%gmail.com@localhost>]

Hi All,

i reinstalled a sparc64 system with NetBSD9.3 and have built firefox52
from pkgsrc-2022Q4:
firefox52-52.9.0nb50.tgz

It will bus error shortly after start, throwing this in the console:

localhost$ firefox52
[Child 4991] ###!!! ABORT: Aborting on channel error.: file
/usr/pkgsrc/www/firefox52/work/firefox-52.9.0esr/ipc/glue/MessageChannel.cpp,
line 2152
[Child 4991] ###!!! ABORT: Aborting on channel error.: file
/usr/pkgsrc/www/firefox52/work/firefox-52.9.0esr/ipc/glue/MessageChannel.cpp,
line 2152
[1]   Bus error (core dumped) firefox52
localhost$

Is it working for anyone else with the above system config?

Regards,
Connor